r-3(r-9)+4=5

Simple and best practice solution for r-3(r-9)+4=5 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for r-3(r-9)+4=5 equation:


Simplifying
r + -3(r + -9) + 4 = 5

Reorder the terms:
r + -3(-9 + r) + 4 = 5
r + (-9 * -3 + r * -3) + 4 = 5
r + (27 + -3r) + 4 = 5

Reorder the terms:
27 + 4 + r + -3r = 5

Combine like terms: 27 + 4 = 31
31 + r + -3r = 5

Combine like terms: r + -3r = -2r
31 + -2r = 5

Solving
31 + -2r = 5

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-31' to each side of the equation.
31 + -31 + -2r = 5 + -31

Combine like terms: 31 + -31 = 0
0 + -2r = 5 + -31
-2r = 5 + -31

Combine like terms: 5 + -31 = -26
-2r = -26

Divide each side by '-2'.
r = 13

Simplifying
r = 13

See similar equations:

| 2x+4(3x-13)=4 | | 2x+3.1= | | 8k^2+16k-15=9 | | Cos(62)=8/x | | X+(-9.8)=-5.6 | | .08x=20000 | | -2-5/4x=14 | | Ag=28.2 | | 24-1y=19 | | 7x-44+77=180 | | -x+y+4=5 | | -5x=-35x+10 | | 5x+7=100 | | 7x-44=180 | | 8(-7)+7-5(-7)-3= | | 4h+7=5 | | -x+y+4= | | 7x-44+77+63=180 | | 2x+4+3=5-2+4x | | 7x-4+77+63=180 | | 12=7+4 | | 21x+9=12x+72 | | f(x)=60x-1.2 | | 62/24-6/5 | | 16d=2864 | | 8x-7+7-5x-7-3= | | -3p-4+6p-5= | | 3-x/4=5/9 | | (1/2)^x=.85 | | 1/2(8-x=8-x÷2 | | 0.45/4.5=p/14 | | 7=2.5x-3 |

Equations solver categories